The
so-called medieval arch was the original entry gate to the ancient
fortress. It was rebuilt in the 13th C. on the site of the ancient Roman
Gate, all of which remain are the massive base-blocks in red "breccione".
Its original function is bearly visible today as it appears to be merely
an arch wedged between two buildings in via Dogali. The ancient Roman
Walls no longer visible here, as they have been incorporated in adjoining
buildings, are on the other hand still perfectly preserved in via
Fantosati and in via del Fiscale (B2)